The latest guidance from the Department for Education includes an update on using face coverings on buses. See below:
Safer travel guidance for passengers -
From today it is the law that you must wear a face covering when travelling in England on public transport including a bus, coach, tram or train. Where travel with children is necessary, such as to an education setting, consider whether children could walk or cycle, accompanied by a responsible adult or carer, where appropriate. The law requiring passengers to wear face coverings does not apply to children under the age of 11. Face coverings should not be used by children under the age of 3, for safety.